Vitale, Armando;
Papa, Alessandro Antonio;
Iannello, Stefano;
Ciro, Erwin;
Hatunoglu, Arda;
Corradetti, Valerio;
Rovelli, Nicola;
... Di Carlo, Andrea; + view all
(2023)
Devolatilization of Polypropylene Particles in Fluidized Bed.
Energies
, 16
(17)
, Article 6324. 10.3390/en16176324.
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Abstract
Gasification of plastic waste is an emerging technology of particular interest to the scientific world given the production of a hydrogen-rich gas from waste material. Devolatilization is a first step thermochemical decomposition process which is crucial in determining the quality of the gas in the whole gasification process. The devolatilization of polypropylene (a key compound of plastic waste) has been investigated experimentally in a bench-scale fluidized bed reactor. Experimental tests were carried out by varying two key parameters of the process—the size of the polypropylene spheres (8–12 mm) and temperature (650–850 °C). Temperature shows the highest influence on the process. Greater molecular cracking results were more pronounced at higher temperatures, increasing the production of light hydrocarbons along with the formation of solid carbon residue and tar. The overall syngas output reduced, while the H2 content increased. Furthermore, a pseudo-first-order kinetic model was developed to describe the devolatilization process (Eapp = 11.8 kJ/mol, A1 = 0.55 s−1, ψ = 0.77).
| Type: | Article |
|---|---|
| Title: | Devolatilization of Polypropylene Particles in Fluidized Bed |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.3390/en16176324 |
| Publisher version: | https://doi.org/10.3390/en16176324 |
| Language: | English |
| Additional information: | © 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
| Keywords: | Science & Technology, Technology, Energy & Fuels, devolatilization, hydrogen, plastic waste, polypropylene, kinetic model, fluidized bed reactor, WOOD PARTICLES, PLASTIC WASTE, PYROLYSIS, POLYETHYLENE, CONVERSION, GASIFICATION, RECOVERY, KINETICS, REACTOR, GAS |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10205792 |
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